which two amino acid have two chiral center？ I know Isoleucine contain two chiral center，how about another AA？ H₂N-C-HHCOOGlycine, Gly, G酸(有甜味)çooH₂N-C-HCH₂Phenylalanine, Phe, FH₂N-C-HCH₂OHCOO*Cysteine andSerine actSimilar.TOSerine, Ser, S0=3,cooH₂N-C-Hexcept Glycine.COOAspartate, Asp, DH₂N-C-HH3CAlanine, Ala, APolarSide chamU丙胺酸၄ဝဝH₂N-C-HCH₂çooH₂N-C-HOHTyrosine, Tyr, Y2H-C-OHCH3two chral centers.Threonine, Thr, TPolarCOO+H₂N-C-H-5-5-3²COOH₂N-C-HCHGlutamate, Glu, EH₂C缬氨酸Valine, Val, VEssential nutrientCH3in the diet of"vertebratescooH₂N-C-HCH₂ionizedJH)Tryptophan, Trp, W+ 1.ΝΗCOOH₂N-C-H-C-HCH₂CH₂H₂Ncloro i IstanCẢNHNH₂Arginine, Arg, RC=OCH₂INHcoo+ IH₂N-C-HCH₂PolarAsparagine, Asn, N+H₂N-C-HCOOH₂CCHCH3H3CLeucine, Leu, L.亮氨酸If it's polur calCOOH₂N-C-HCH₂SHCysteine, Cys, Csulfur PolarCOO+ 1H₂N-C-HH₂NCH₂CH₂CH₂CH₂I+NH3Lysine, Lys, K-Side chainH₂N-C-HBertaCH₂Hydrogen bondPolarGlutamine, Gln, Q+H₂N-C-HH-C-CH3CH₂CH3Isoleucine, Ile, Itwo chivalcenter.coocoo+ IH₂N-C-HCH3Methionine, Met, Msulfur.CH₂COO+H₂N-C-HH₂N-H₂C.CH₂Histidine, His, Hges- NHH₂COOC-HCH₂Proline, Pro, Ponly proline hasSunday aaminogrp

Proteins are composed of amino acids. They are linked together by peptide linkages. Proteins have…

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Biochemistry

which two amino acid have two chiral center？ I know Isoleucine contain two chiral center，how about another AA？

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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с" CH2 CH2 "НaN H с. CH С" CH Нзс CHз ZI о-о
Briefly and in simple terms, describe the glycoside bond connecting two monosaccharides in a di- or polysaccharide.
Glutamine is an amino acid that has -CH₂-CH2-CO-NH₂ as its R group. The R group of the amino acid isoleucine is -CH2-CH-(CH3)2. If these amino acids were in a globular protein in aqueous solution, where would they most likely be? O Both glutamine and isoleucine would be in the interior and on the exterior of the globular protein. O Glutamine would be in the interior, and isoleucine would be on the exterior of the globular protein. O There isn't enough information O Both glutamine and isoleucine would be on the exterior of the globular protein. O Isoleucine would be in the interior, and glutamine would be on the exterior of the globular protein.
Why is an amino acid called a "residue" in a protein but not an "amino acid"?
Does amino acid sequence or amino acid composition have more of an impacts the protien structure?
An amino acids unique property arises through which component? How does this same component contribute to the overall chemical nature of the protein?
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+H₂N-CH-COO™ T CH₂ I CH₂ 1 CH₂ I +H₂N-CH₂ A. O amino acid C amino acid D O amino acid E amino acid B +H₂N-CH-COO™ I CH₂ I CH₂ 1 O amino acid A C=0 B. If the pH decreases enough, this amino acid will become protonated and could contribute to the denaturation of the protein. +H₂N-CH-COO™ 1 CH₂ I OH C. +H₂N-CH-COO™ CH H₂C CH3 D.
Consider the following tetrapeptide, written in a sequence according to normal convention, from left to right: Residue 1 is acidic; Residue 2 is proline (a large hydrophobic amino acid); Residue 3 is cysteine (an amino acid containing a -CH2SH R-group); Residue 4 is basic. Which of the following four general statements is TRUE regarding this tetrapeptide? This tetrapeptide probably is not part of an alpha-helix, since the large size of the proline would disrupt the consistency of the spiral shape. Residue 3 belongs to the amino acid category known as "basic." This tetrapeptide has the ability to form a disulfide linkage with an identical tetrapeptide. The acidic residue (Residue #1) is at the amino terminus of this tetrapeptide. 3 of these 4 responses are correct